I once had a manager say he wouldn't give me a reference. "This job won't even be on my resume" was not what Andre expected to hear in response to his threat. I was already applying for other jobs and, in fact, had not listed that one on my resume.

I think it's the other way around, it's like you being the boss, firing your employee for being a dickhead, and the employee screaming that you'll rue the day we fired him.